Ok, I just have one plant, and I am sort of trying to learn on it more than anything right now. I grew this from a seed I found in a bag of purple kush. I am growing in soil (schultz premium potting soil plus 0.08-012-0.08), about 2 inches from the light (2 35w 2500 lumen flouro) in my closet. They are 5-6 months old. I have watered them about every second day, with 7.0 ph water. It's room temp about 72 F and low humidty. The pot is a foot wide and a foot deep. I had some thrips causing me some problems, at first I couldn't figure out what they were, and once I did they had done a bit of damage on the lower/older leaves, aka shiny spots etc. I went to the store and bought some bio friendly pesticide (Green Earth Bio Mist Insect Killer) that was for indoor use and claimed to rid plants of thrips. I mixed it 10:1 with water and sprayed it on my plants, two days later I have this happening..... http://postimage.org/image/2b90osgxw/ Other info: My PH I have only measured with a analog PH meter and it's about 7.5-8. I realize this is above ideal, and intend to fix it, does this damage look anything like a PH imbalance or something else, thanks.